Alert archive / Texas / Flash Flood Warnings in 2011
Flash Flood Warning 8, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Dec 20, 2011, 6:28 AM CST for Beauregard Parish, Rapides Parish, Vernon Parish, Louisiana; 5 counties in Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 20, 2011, 6:28 AM CST (12:28 UTC)
- Expired
- Dec 20, 2011, 9:30 AM CST
- In force
- 3 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Beauregard Parish, LA, Rapides Parish, LA, Vernon Parish, LA, Hardin County, TX, Jasper County, TX, Jefferson County, TX, Newton County, TX, Tyler County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.5 hours before the alert went out and 104 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 879 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 614 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 8.5
The text
As transmitted, in the capitals the NWS used until 2016.
757
WGUS54 KLCH 201228
FFWLCH
LAC011-079-115-TXC199-241-245-351-457-201530-
/O.NEW.KLCH.FF.W.0008.111220T1228Z-111220T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
628 AM CST TUE DEC 20 2011
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
HARDIN COUNTY IN SOUTHEAST TEXAS...
JASPER COUNTY IN SOUTHEAST TEXAS...
NEWTON COUNTY IN SOUTHEAST TEXAS...
NORTHWESTERN BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
NORTHWESTERN JEFFERSON COUNTY IN SOUTHEAST TEXAS...
NORTHWESTERN RAPIDES PARISH IN CENTRAL LOUISIANA...
SOUTHEASTERN TYLER COUNTY IN SOUTHEAST TEXAS...
VERNON PARISH IN WEST CENTRAL LOUISIANA...
* UNTIL 930 AM CST
* AT 626 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING AREA OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY
RAINFALL ACROSS THE WARNED AREA. RAINFALL TOTAL ESTIMATES RANGE
FROM 3 TO 5 INCHES WITHIN THE PAST 3 HOURS. AN ADDITIONAL 1 TO 2
INCHES OF RAINFALL IS POSSIBLE WITHIN THE WARMED AREA WITHIN THE
NEXT 2 HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ANACOCO...BON WEIR...BUNA...BURKEVILLE...CALL...EVADALE...FORT
POLK...FRED...JASPER...KIRBYVILLE...KOUNTZE...LEESVILLE...LENA...
LUMBERTON...NEWTON...SARATOGA...SILSBEE...SLAGLE...SOUR LAKE...
THICKET...TOLEDO BEND DAM...TOWN BLUFF...WILDWOOD...BATSON...BURR
FERRY...CANEY HEAD...FARRSVILLE...FLATWOODS...HARRISBURG AND HONEY
ISLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA WITHIN THE NEXT 2 HOURS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3150 9267 3145 9270 2996 9444 3011 9445
3012 9460 3032 9468 3118 9368 3117 9358
3128 9354 3128 9345 3137 9339 3135 9295
3151 9273
$$
JT1 follow-up statement
037
WGUS74 KLCH 201348
FFSLCH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
748 AM CST TUE DEC 20 2011
LAC011-079-115-TXC199-241-245-351-457-201530-
/O.CON.KLCH.FF.W.0008.000000T0000Z-111220T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARDIN TX-JASPER TX-NEWTON TX-TYLER TX-JEFFERSON TX-RAPIDES LA-
BEAUREGARD LA-VERNON LA-
748 AM CST TUE DEC 20 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN
JEFFERSON...SOUTHEASTERN TYLER...NEWTON...JASPER AND HARDIN
COUNTIES...AND VERNON...NORTHWESTERN BEAUREGARD AND NORTHWESTERN
RAPIDES PARISHES UNTIL 930 AM CST...
AT 743 AM CST... RAINFALL IS DECREASING ACROSS THE WARNED AREA.
DOPPLER RADAR ESTIMATES THAT FROM 3 TO 5 INCHES HAS ALREADY FALLEN
ACROSS THE WARNED AREA. AN ADDITIONAL 1/2 INCH IS POSSIBLE WITHIN
THE WARNED AREA WITHIN THE NEXT HOUR.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ANACOCO...BON WEIR...BUNA...BURKEVILLE...CALL...FRED...JASPER...
KIRBYVILLE...KOUNTZE...LEESVILLE...LENA...LUMBERTON...NEWTON...
SARATOGA...SILSBEE...SLAGLE...SOUR LAKE...THICKET...TOLEDO BEND
DAM...WILDWOOD...BATSON...BURR FERRY...CANEY HEAD...FARRSVILLE...
FLATWOODS...HARRISBURG...HONEY ISLAND...HORNBECK...HUTTON AND
JAMESTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3150 9267 3145 9270 2996 9444 3011 9445
3012 9460 3032 9468 3118 9368 3117 9358
3128 9354 3128 9345 3137 9339 3135 9295
3151 9273
$$
21The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 5:54 AM CST | Areal Flood Advisory | LCH | Beauregard, Rapides, Vernon | 111 min |
| Dec 20, 7:29 AM CST | Severe Thunderstorm Warning | LCH | Beauregard | 61 min |
| Dec 20, 8:25 AM CST | Tornado Warning | LCH | Beauregard, Calcasieu | 35 min |
| Dec 20, 8:32 AM CST | Areal Flood Advisory | LCH | Allen, Beauregard, Calcasieu, Rapides, Vernon | 118 min |
| Dec 20, 4:18 AM CST | Special Weather Statement | LCH | Hardin | 57 min |
| Dec 20, 4:51 AM CST | Special Weather Statement | LCH | Hardin | 54 min |
| Dec 20, 5:08 AM CST | Severe Thunderstorm Warning | LCH | Hardin, Jasper, Tyler | 67 min |
Nearby
Flash Flood Warnings in Texas, 2011Flash Flood Warnings in Louisiana, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.